/Engine/Source/Runtime/Engine/Classes/Materials/MaterialInstanceUpdateParameterSet.h
Workaround - Similar to base call but evaluates all expressions found, not just the first
namespace MaterialInstance_Private { template<typename ExpressionType> void MaterialInstance_Private::FindClosestExpressionByGUIDRecursive ( const [FName](API\Runtime\Core\UObject\FName) & InName, const [FGuid](API\Runtime\Core\Misc\FGuid) & InGUID, TConstArrayView< [TObjectPtr](API\Runtime\Core\Delegates\TObjectPtr)< [UMaterialExpression](API\Runtime\Engine\Materials\UMaterialExpression) >> InMaterialExpression, ExpressionType *& OutExpression ) }